macrorhynchus, Hemipimelodus Weber [M.] 1913:549, Fig. 27 [Süsswasserfische aus Niederländisch Süd- und Nord-Neu-Guinea v. 9 (livr. 4); ref. 4603] Lorentz River, van Weelskamp, Bivak River and Alkmaar, New Guinea. Syntypes: ZMA 111085-86 (2, 1). Type catalog: Nijssen et al. 1982:53 [ref. 19236], Ferraris 2007:32 [ref. 29155]. •Valid as Hemipimelodus macrorhynchus Weber 1913 -- (Desoutter 1977:13 [ref. 20628], Roberts 1978:39 [ref. 8886], Burgess 1989:167 [ref. 12860]). •Valid as Arius macrorhynchus (Weber 1913) -- (Kailola 1990:23, 24 [ref. 19337], Allen 1991:54 [ref. 21090], Allen et al. 2000:45 [ref. 27467]). •Valid as incertae sedis, cf. Arius macrorhynchus (Weber 1913) -- (Kailola 2004:146 [ref. 28108]). •Incertae sedis in Ariidae -- (Ferraris 2007:32 [ref. 29155]). •Valid as Potamosilurus macrorhynchus (Weber 1913) -- (Marceniuk & Menezes 2007:102 [ref. 29031], Allen et al. 2008:57 [ref. 30265], Marceniuk et al. 2012:668 [ref. 32225], Marceniuk et al. 2023:48 [ref. 40422]). Current status: Valid as Potamosilurus macrorhynchus (Weber 1913). Ariidae: Ariinae. Distribution: New Guinea (Papua Province, Indonesia and Papua New Guinea). Habitat: freshwater.